Cosmic Quest - Philosopher Scientists - The Innovative Ideas of the Early Greeks

Heather Couper presents a narrative history of astronomy. About 2,600 years ago, Greek philosopher Thales was the first person to suggest that natural forces rather than the gods might be responsible for dramatic events such as earthquakes and even eclipses. Pythagoras developed an interest in geometry that led him to realise that the Earth was a sphere. This was the start to a series of philosophical schools.